CN102696279A - Electronic ballast circuit for lamps - Google Patents

Electronic ballast circuit for lamps Download PDF

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Publication number
CN102696279A
CN102696279A CN 201080060369 CN201080060369A CN102696279A CN 102696279 A CN102696279 A CN 102696279A CN 201080060369 CN201080060369 CN 201080060369 CN 201080060369 A CN201080060369 A CN 201080060369A CN 102696279 A CN102696279 A CN 102696279A
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CN
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circuit
voltage
ballast
lamp
connected
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CN 201080060369
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Chinese (zh)
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CN102696279B (en )
Inventor
S.麦克内伊
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吉尼希斯系统有限责任公司
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
    • H05B37/00Circuit arrangements for electric light sources in general
    • H05B37/02Controlling
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
    • H05B41/00Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14Circuit arrangements
    • H05B41/26Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/282Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices
    • H05B41/2821Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices by means of a single-switch converter or a parallel push-pull converter in the final stage
    • H05B41/2822Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices by means of a single-switch converter or a parallel push-pull converter in the final stage using specially adapted components in the load circuit, e.g. feed-back transformers, piezo-electric transformers; using specially adapted load circuit configurations
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
    • H05B41/00Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14Circuit arrangements
    • H05B41/26Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/282Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices
    • H05B41/2821Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices by means of a single-switch converter or a parallel push-pull converter in the final stage
    • H05B41/2824Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices by means of a single-switch converter or a parallel push-pull converter in the final stage using control circuits for the switching element
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
    • H05B41/00Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14Circuit arrangements
    • H05B41/36Controlling
    • H05B41/38Controlling the intensity of light
    • H05B41/382Controlling the intensity of light during the transitional start-up phase

Abstract

An electronic ballast circuit includes a power factor correction circuit, a control and amplifier circuit, a ballast controller circuit and a ballast driver circuit. The ballast driver circuit includes a resonant circuit that connects to a lamp and a strike voltage limiter circuit that regulates the behavior of the resonant circuit. An overcurrent sensor circuit may be included to indirectly the control the ballast controller circuit via the control and amplifier circuit. The strike voltage limiter circuit uses varistors to change the resonant frequency of the resonant circuit to limit the voltage to the lamp.

Description

灯的电子镇流器电路 Lamp electronic ballast circuit

[0001] 相关申请 [0001] RELATED APPLICATIONS

[0002] 本申请要求提交于2009年11月2日的第61/257,194号美国临时专利申请的优先权,其内容全部被结合在此文中作为參考。 [0002] This application claims filed November 2, 2009 priority No. 61 257,194 / Provisional U.S. Patent Application, the entire contents of which are incorporated by reference in this text.

背景技术 Background technique

[0003] 本发明涉及灯(诸如,高亮度放电灯和荧光灯)的镇流器电路。 [0003] The present invention relates to light (such as fluorescent lamps and high intensity discharge lamp) ballast circuit. 更尤其地,本发明涉及针对镇流器电路驱动的灯进行功率极限表征(power limit characterization)、电流限制以及电压限制的电路。 More particular, the present invention relates to a power limit characterization (power limit characterization) for driving a lamp ballast circuit, the current limiting circuit and the voltage limit.

发明内容 SUMMARY

[0004] 一方面,本发明涉及用于限制灯的触发电压的电子镇流器电路,包括:镇流器驱动器电路,其包括:谐振电路,该谐振电路具有被配置成驱动灯的第一谐振频率;以及被连接到所述谐振电路上的限压电路。 [0004] In one aspect, the present invention relates to an electronic ballast for a lamp trigger voltage limit circuit, comprising: a ballast driver circuit comprising: a resonance circuit having a first resonance of the resonant circuit is configured to drive the lamp frequency; and a resonance circuit connected to said voltage limiting circuit.

[0005] 当灯电压超过阈值电压时,第一谐振频率可变为第二谐振频率,从而将所述灯电压箝位(clamp)到所述阈值电压。 [0005] When the lamp voltage exceeds the threshold voltage, the first resonant frequency may be changed to a second resonant frequency, whereby the lamp voltage clamp (CLAMP) to said threshold voltage.

[0006] 谐振电路可进一歩包括第一电感器,其与运行电容器和触发电容器串联连接,灯被跨接到触发电容器两端,并且限压电路被跨接到运行电容器两端。 [0006] The resonant circuit may include a ho into a first inductor connected in series with the run capacitor and the trigger capacitor, connected across the lamp is triggered across the capacitor, and the voltage limiting circuit is connected across both ends of the operating capacitor.

[0007] 限压电路可包括:在运行电容器高侧与公共电压之间被串联连接起来的第一变阻器、触发电压充电高侧电容器和第一ニ极管;在运行电容器低侧和所述公共电压之间被串联连接的第二变阻器、触发电压充电低侧电容器和第二ニ极管,其中,所述第一ニ极管被布置成在第一方向上导通,而第ニニ极管被布置成在与第一方向相反的方向上导通。 [0007] The limiting circuit may comprise: a first varistor connected in series between the high-side operating capacitor and the common voltage, the trigger voltage of the charging capacitor and a first high-side diode Ni; running low side capacitor and the common a second varistor connected in series between the voltage, the trigger voltage of the low side capacitor and a second charging diode ni, wherein ni of said first diode being arranged to be turned in a first direction, and the first diode is ni ni It is arranged to be turned in the direction opposite to the first direction.

[0008] 限压电路可进ー步包括第三变阻器,其桥接位于触发电压充电高侧电容器与第一二极管之间的第一点和位于触发电压充电低侧电容器和第二ニ极管之间的第二点。 [0008] The limiting circuit may further include a third feed ー varistor, a first trigger point is located in bridging between the side of the high voltage charging capacitor and the first diode is located in the low side capacitor charging trigger voltage and a second diode ni between the second point.

[0009] 可从由被跨接到一对总线之间的第一和第二电容器形成的分压器得出公共电压。 [0009] The voltage divider may be connected across the first and second capacitor formed between a pair of bus voltage derived from the common.

[0010] 镇流器驱动器电路完全不包括被配置成用于检测其中的电流状态的电阻器,以减轻功率消耗和热的生成。 [0010] The ballast includes a driver circuit is completely configured to detect a state wherein a current resistor, in order to reduce power consumption and heat generation.

[0011] 另ー方面,本发明涉及电子镇流器电路,其包括: [0011] ー another aspect, the present invention relates to an electronic ballast circuit, comprising:

[0012] 镇流器控制器电路,其被配置成输出至少ー个驱动信号; [0012] The ballast controller circuit is configured to output at least ー drive signals;

[0013] 功率因子校正电路,其输出反映电压的电流感测信号; [0013] The power factor correction circuit, the output voltage of the current sensing reflected signal;

[0014] 控制和放大器电路,其被配置成接收所述电流感测信号,将功率校正反馈信号提供给功率因子校正电路,并且提供一个或多个输出信号,以控制镇流器控制器电路; [0014] The amplifier and control circuit, which is configured to receive the current sense signal, the power correction feedback signal to the power factor correction circuit, and providing one or more output signals to control the ballast control circuit;

[0015] 镇流器驱动器电路,其被配置成从所述镇流器控制器电路接收所述至少ー个驱动信号,所述镇流器驱动器电路包括: [0015] The ballast driver circuit is configured to receive from said controller said ballast circuit having at least ー drive signals, the ballast driver circuit comprising:

[0016] 可连接灯的谐振电路;以及 [0016] The lamp can be connected to the resonance circuit; and

[0017] 被配置成调节谐振电路的行为的限压电路; [0017] The voltage limiting circuit is configured to adjust the resonant behavior of the circuit;

[0018] 以及[0019] 过流传感器电路,其被配置成,向控制和放大器电路输出信号,从而经由控制和放大器电路间接地控制镇流器控制器电路。 [0018] and [0019] overcurrent sensor circuit configured to output a control signal and an amplifier circuit, thereby indirectly controlling the ballast control and the controller circuit via the amplifier circuit.

[0020] 又另一方面,本发明涉及电子镇流器电路,其包括功率因子校正电路、控制和放大器电路、镇流器控制器电路和镇流器驱动器电路。 [0020] In yet another aspect, the present invention relates to an electronic ballast circuit comprising a power factor correction circuit, and an amplifier control circuit, the ballast control circuit and the ballast circuit driver. 镇流器驱动器电路包括谐振电路,其被连接到灯以及调节谐振电路行为的限压电路。 The ballast driver circuit includes a resonant circuit, which is connected to the lamp and an adjustment voltage limiting circuit of the resonant circuit behavior. 可包括过流传感器电路,以经由控制和放大器电路间接地控制镇流器控制器电路。 Overcurrent sensor may include a circuit to control the ballast controller indirectly via a control circuit and an amplifier circuit.

附图说明 BRIEF DESCRIPTION

[0021] 根据以下对本发明的详细说明,并同时阅读以下的附图,以上提及的本发明的特征将变得能更加清楚地被理解,其中: [0021] The following detailed description of the present invention, while reading the following drawings, the above-mentioned features of the invention will become more clearly understood from the can, wherein:

[0022] 图I是依据本发明的一个实施例的电子镇流器的框图; [0022] Figure I is a block diagram of an electronic ballast according to an embodiment of the present invention;

[0023] 图2是在图I中镇流器中使用的功率因子校正电路的一个实施例的框图; [0023] FIG. 2 is a block diagram of one embodiment of the power factor correction circuit used in the ballast of FIG. I;

[0024] 图3是在图I中镇流器中使用的控制器和放大器电路的一个实施例的框图; [0024] FIG. 3 is a block diagram of one embodiment of a ballast used in Figure I a controller and amplifier circuit;

[0025] 图4是在图I的实施例中使用的调光器接口和支持电路的实施例的框图; [0025] FIG. 4 is a block diagram of an embodiment of the dimming interface, and support circuitry for use in the embodiment of Figure I;

[0026] 图5是图I的实施例中镇流器控制器和镇流器驱动器电路的一个实施例的框图; [0026] FIG. 5 is a block diagram of one embodiment of a ballast Examples ballast controller and the driver circuit of the embodiment of Figure I;

[0027] 图6是在图I的实施例中使用的镇流器驱动器和限压电路的一个实施例的框图; [0027] FIG. 6 is a block diagram of one embodiment of a ballast for use in driving the embodiment of Figure I and the voltage limiting circuit;

[0028] 图7是图I的电子镇流器的示意性的一个实施例,示出了EMI滤波和整流电路; [0028] FIG. 7 is a schematic embodiment of an electronic ballast of Figure I embodiment showing the EMI filter and rectifier circuit;

[0029] 图8是图I的电子镇流器的示意性的一个实施例,示出了功率因子校正电路; [0029] FIG. 8 is a schematic embodiment of an electronic ballast of Figure I embodiment showing a power factor correction circuit;

[0030] 图9是图I的电子镇流器的示意性的一个实施例,示出了控制器和放大器电路; [0030] FIG. 9 is a schematic of an electronic ballast of Figure I an embodiment showing a controller and an amplifier circuit;

[0031] 图10是图I的电子镇流器的示意性的一个实施例,示出了电压调节器电路; [0031] FIG. 10 is a schematic embodiment of an electronic ballast of Figure I embodiment showing a voltage regulator circuit;

[0032] 图11是图I的电子镇流器的示意性的一个实施例,示出了镇流器控制器和镇流器驱动器电路; [0032] FIG. 11 is a schematic embodiment of an electronic ballast of Figure I showing the ballast and the ballast controller driver circuit;

[0033] 图12是图I的电子镇流器的示意性的一个实施例,示出了调光电路和限流电路。 [0033] FIG. 12 is a schematic embodiment of an electronic ballast of Figure I showing the dimming circuit and the current limiting circuit. 具体实施方式 Detailed ways

[0034] 图I示出了依据本发明的一个实施例的电子镇流器100的一个实施例的框图。 [0034] Figure I shows a block diagram of an embodiment of an electronic ballast in accordance with one embodiment of the present invention 100. 镇流器100被配置成驱动灯602,例如,高亮度放电(HID)灯(诸如M132/M154),其在135伏的电压额定值下具有320瓦的功率额定值。 The ballast 100 is configured to drive the lamp 602, e.g., a high intensity discharge (HID) lamp (such as M132 / M154), which has a power rating of 320 watts at 135 volt rating. 这样的灯602可适用于照亮大的区域,诸如停车场或仓库。 Applicable to such lamps 602 illuminate a large area, such as car parks or warehouses. 这样的灯602的镇流器100被连接到208Vac、240Vac或277Vac的电源。 Such a lamp ballast 100 is connected to 602 208Vac, 240Vac or 277Vac power of. 镇流器100提供了峰值为3至4KV的触发电压,并且在大致IOOKHz的频率下工作。 Ballast 100 provides trigger voltage peak 4KV to 3, and operates at a frequency of approximately IOOKHz. 本领域技术人员将认识到的是,这些值将随灯的制造商的技术规格和推荐技术标准而改变,而不背离本发明的精神和范围。 Those skilled in the art will recognize that these values ​​will vary with the technical specifications and technical standards recommended by the manufacturer of the lamp and changed without departing from the spirit and scope of the invention.

[0035] 镇流器100包括:EMI滤波器和整流器电桥(“供电”)电路110、功率因子控制器电路120、VCC调节器电路130、镇流器驱动器电路140、控制和放大器电路150、过流传感器电路160、镇流器控制器电路170,和调光器电路180。 [0035] The ballast 100 includes: EMI filter and a rectifier bridge ( "power") circuit 110, a power factor controller circuit 120, VCC regulator circuit 130, the ballast drive circuit 140, control circuit 150 and an amplifier, overcurrent sensor circuit 160, the ballast control circuit 170, and a dimmer circuit 180. 在电路100中还存在额外的组件和功倉^:。 There is also additional components and power circuit 100 in the cartridge ^ :.

[0036] 镇流器100调节流过负载(诸如灯120)的电流。 [0036] The ballast 100 regulate the flow through the load (such as a lamp 120) current. 镇流器100是ー种电子镇流器,其在一个实施例中模拟了反应镇流器的电压对功率曲线。ー electronic ballast 100 is a ballast, which in one embodiment, the analog voltage of the power curve of the reaction of the ballast. 镇流器100具有限制灯的触发电流和电压的特征。 Ballast 100 having a trigger current limiting and voltage of the lamp features. [0037] EMI滤波器和整流器电桥电路110起到电源110的作用,其向镇流器100和灯602的电路供电。 [0037] EMI filter and a rectifier bridge circuit 110 functions as the power supply 110 which supplies power to the ballast circuit 100 and the lamp 602. 电源110接收第一和第二功率输入端112a、112b并且还具有接地输入114。 First and second power supply 110 receives power input terminal 112a, 112b and 114 further has a ground input. 电源110将经滤波、整流的正弦波输出到输电线118a、118b。 Power supply 110 to the output transmission line 118a, 118b by the sine wave filtered, rectified. EMI滤波器和整流器电桥电路110经由输电线118a、118b向下游连接到功率因子控制器(PFC)电路120,通过跨接在输电线118a、118b之间的PFC输入电容器116。 EMI filter and a rectifier bridge circuit 110 118a, 118b are connected via a power line to the downstream power factor controller (PFC) circuit 120, connected across the power lines through 118a, PFC capacitor 116 between the input 118b.

[0038] PFC电路120接收来自控制和放大器电路150的功率校正反馈信号152。 [0038] PFC circuitry 120 receives power from the control circuit 150 and the amplifier correction feedback signal 152. PFC电路120响应于功率校正反馈信号152调整+主总线132a的电压。 The PFC circuit 120 in response to a voltage feedback signal 152 to adjust the power correction + 132a of the main bus. PFC电路120输出电流感测信号158,以供镇流器电路100中的其它组件使用。 120 PFC current sensing signal output circuit 158, the other component for use in the ballast circuit 100. 在下面更详细地描述了信号152、158的生成和实施。 In the embodiment described below and generates signals 152, 158 in more detail. PFC电路120有助于保持功率因子尽量接近100%,以便向电源110提供尽量高的有效负载(real load),以便满足IEC61000-3-2的要求,并且改善效率。 The PFC circuit 120 helps to maintain the power factor as close to 100%, to the power source 110 in order to provide the highest possible payload (real load), in order to meet the requirements of IEC61000-3-2, and improve the efficiency. 反应镇流器普遍具有低的功率因子。 The reaction ballast generally has a low power factor. PFC电路120配备有功率极限表征(power limit characterization)能力,其使镇流器100能够近似反应镇流器的电压与功率的关系特征。 The PFC circuit 120 is equipped with a power limit Characterization (power limit characterization) capability, which enables the ballast 100 can be approximated response relationship characteristic voltage and power of the ballast. PFC电路120的下游是镇流器控制器电路170,其是向镇流器驱动器电路140提供偏压信号的电路。 The PFC circuit 120 is downstream of the ballast control circuit 170, a circuit which provides a bias signal to drive the ballast circuit 140. [0039] 镇流器驱动器电路140以近似于驱动灯602的谐振电路620的频率供电。 [0039] The resonant frequency of the power supply circuit 620 to drive the lamp 602 similar to the drive circuit 140 of the ballast. 与镇流器驱动器电路140相关联的是灯的触发电压限制器(VL)电路610,其限制了经由灯的供电引线144a、144b被施加到灯602上的触发电压,从而有助于增加灯的寿命。 Ballast drive circuit 140 is associated with a trigger voltage limiter (VL) of the lamp circuit 610, which limits 144a, 144b is applied to the trigger voltage across the lamp 602 via the power supply leads of the lamp, thus helping to increase the lamp life.

[0040] VCC调节器电路130从+主总线132a接收电力,并在VCC总线134上输出第一电压,VCC总线134被连接到各种其它组件上。 [0040] VCC regulator circuit 130 receives power + main bus 132a, and a first output voltage on the VCC bus 134, the VCC bus 134 is coupled to various other components. VCC调节器电路130还包括隔离变压器T100,从隔离变压器TlOO输出了隔离的功率信号VCC-IS0138。 VCC regulator circuit 130 further includes an isolation transformer T100, the output from the isolation transformer TlOO isolated power signal VCC-IS0138. Vcc总线134由主总线132a、132b供电。 Vcc bus 134 by the host bus 132a, 132b supply. 总线滤波器电容器128a、128b被跨接到主总线之间。 Bus capacitor filter 128a, 128b is applied across the main bus. 因此,主总线132a、132b的电压对应于总线滤波器电容器128a、128b的电压。 Accordingly, the voltage of the main bus 132a, 132b corresponding to the filter capacitor voltage bus 128a, 128b of. 通过这种方式,当总线滤波器电容器128a、128b的电压降到阈值以下时,到达灯602的电流中断。 In this manner, when the filter capacitor voltage bus 128a, 128b falls below the threshold, the lamp 602 reaches the current interruption. 此外,存在仅通过灯的物理本质(nature)维持灯602所需的最小驱动电压。 Furthermore, there is only a minimum drive voltage required to maintain the lamp 602 by the physical nature of the lamp (nature). 电压调节器电路130能够从主总线132a、132b产生处于灯的持续电位(sustain level)以下的Vcc电压。 A voltage regulator circuit 130 can, 132b at the lamp voltage Vcc to generate potential duration (sustain level) from the main bus 132a. 该电压调节器电路130可以被看作为延续电路耐受('last-circuit-standing')。 The voltage regulator circuit 130 can be seen as a continuation of the circuit tolerance ( 'last-circuit-standing'). Vcc关闭(shutdown)的滞后是为了通过尝试“直通(carry-thru)”临时断电而适应输电线中断。 Vcc shut down (shutdown) hysteresis to adapt power lines interrupted by trying to "pass-through (carry-thru)" temporary power failure. 在一个实施例中,电压调节器电路130使灯602通过8个60Hz的周期,但是必须经由被施加到控制电路中的Vcc电压保持控制状态,以用于恢复,如果在这种情况下,灯602尚未熄灭。 In one embodiment, voltage regulator circuit 130 cycles the lamp 602 by eight 60Hz, but must remain in control state is applied to the control circuit via the voltage Vcc, for recovery, if in this case, the lamp 602 has not been extinguished. 电压调节器电路130具有另ー种关于镇流器上电的状況。 A voltage regulator circuit 130 having another such situation ー ballast power on. 在图I中的电压调节器电路130具有MOV (未示出),其被连接到其启动偏压管脚,以防止电压调节器电路130在低于最小值(例如,190VAC)的输电线电压水平处启动,以此作为保护特征。 Voltage regulator circuit 130 in FIG. I has a MOV (not shown), which is connected to its start-up bias pin to prevent the power line voltage of the voltage regulator circuit 130 is below a minimum value (e.g., 190VAC) of at the level of starts, as a protection feature.

[0041] 与镇流器控制器电路170相关联的是灯的触发过流传感器电路160,其感测反向电流,并且,正如可适用的,重置触发序列,以通过对电流提供更准确的控制来提高性能。 [0041] The ballast controller circuit 170 and associated sensor circuit overcurrent trigger the lamp 160, which senses the reverse current, and, as applicable, the reset trigger sequence to provide a more accurate current by It controls to improve performance. 过流传感器电路160被连接到电压VCC总线134以及电压VCC镇流器驱动器上,其被供应到镇流器驱动器电路140。 Overcurrent sensor circuit 160 is coupled to voltage VCC bus 134 and a voltage VCC drive ballast, the ballast which is supplied to the driver circuit 140. 如果过流传感器电路160感测到ー个或多个电压处于预定值以外,贝IJ其向控制和放大器电路150输出过流信号160。 If the overcurrent sensor 160 senses ー circuit senses a voltage is beyond a predetermined value or more, IJ shell 160 outputs an overcurrent signal to the control circuit 150 and an amplifier.

[0042] 控制和放大器电路150接收来自过流传感器电路160的过流信号162、来自调光器时间延迟开关186的调光器总线校正信号188,以及来自功率因子控制器电路120的PFC电流感测信号158等。 Overcurrent signal [0042] The control circuit 150 receives from the amplifier and current sensor circuit 160 through 162, the time delay from the dimmer dimmer switch 186 of the correction signal bus 188, and a current from the PFC power factor controller circuit 120 test signal 158 and the like. 作为响应,控制和放大器电路150向功率因子控制电路120输出功率校正反馈信号152、将调光器延迟控制信号输出回给调光器时间延迟开关186,并且向镇流器通断开关168输出镇流器控制器通/断信号154,该镇流器通断开关168控制被供应给镇流器控制器电路170的电压VCC镇流器控制器176。 In response, the control circuit 150 controls the amplifier and to the power factor correction circuit 120 outputs a power feedback signal 152, the dimmer output delay control signal back to the time delay the dimmer switch 186, and the on-off switch 168 to the ballast output town flow controller on / off signal 154, the ballast control on-off switch 168 is supplied to the controller circuit 170 of the ballast voltage VCC ballast controller 176.

[0043] 调光器电路180接收调光器电压信号182a、182b,并输出信息,该信息被总体显示为调光器时间延迟开关186的电路使用,以产生给控制和放大器电路150的调光器总线校正反馈信号188,以及给镇流器控制器电路170的调光器频率调节信号174。 [0043] The dimmer circuit 180 receives a dimming voltage signal 182a, 182b, and output information, the information is generally displayed a delay circuit using a switch 186 to the dimmer time to generate the control and amplifier circuit dimmer 150 correction feedback signal bus 188, and to the dimmer ballast controller circuit 170 frequency adjustment signal 174.

[0044] 镇流器通/断开关168接收来自控制和放大器电路150的镇流器控制器通/断信号154。 [0044] The ballast on / off switch 168 receives control from the ballast controller circuit 150 and the amplifier on / off signal 154. 镇流器通/断开关168被配置成,根据镇流器控制器通/断信号154将电压VCC总线134选择性地连接到镇流器控制器电路170,正如下面将详细讨论的。 Ballast on / off switch 168 is configured to ballast controller on / off signal 154 to 134 is selectively connected to the ballast voltage VCC bus controller circuitry 170, as will be discussed in detail.

[0045] 图2示出了PFC电路120的一个实施例200。 [0045] FIG 2 illustrates an embodiment 120 of the PFC circuit 200. PFC集成电路芯片(“PFC 1C”) 210(诸如NCP1650,可从安森美半导体公司(ON semiconductor)购得),组成PFC电路120的核。 PFC integrated circuit chip ( "PFC 1C") 210 (such as NCP1650, commercially available from the company ON Semiconductor (ON semiconductor)), the composition of the nuclear PFC circuit 120. 通过用于提供总线大容量电容器128a、128b的上电充电的支路整流器D8,降低了功率因子校正电路120的峰值功率操纵要求。 Provide bulk capacitor bus by the electrical branch of the rectifier for charging D8 128a, 128b, reducing the peak power of the power factor correction circuit 120 in maneuvering requirements. 在启动过程中利用支路整流器420提供支路,功率因子校正电路120就不需要提供镇流器驱动器电路140所需要的辅助电压(boosted voltage)。 Using a rectifier branch during start-provided branch 420, a power factor correction circuit 120 does not need to provide an auxiliary voltage (boosted voltage) ballast driver circuit 140 required. 在不需要对付满初始启动电流的情况下,功率因子校正电路120能够在大致从50% (例如,在全调光情况下)到满功率的负载范围中有效地工作。 Without the need to deal with the full initial starting current, power factor correction circuit 120 can be substantially (e.g., in the case where the whole dimming) to the full power of the load range from 50% to work effectively in.

[0046] 高功率线(high power line) 118a经由包括电感器LI和升压整流ニ极管D2的PFC支路线122连接,形成电路100的+主总线132a。 [0046] High-power lines (high power line) 118a through inductor LI and comprises a boost PFC rectifier diode ni branched line 122 D2 is connected to the main bus circuit 132a 100 + formed. 低功率线(low power line)118b直接连接到PFC ICC电流感测器Is的管脚226。 Low power line (low power line) 118b is directly connected to the current sensor Is PFC ICC pin 226. 同吋,-主总线132b被连接到PFC IC的接地管脚GND。 Inch with, - the main bus 132b is connected to the ground pin GND PFC IC.

[0047] PFC电流感测电阻器206并联到PFC IC的Iavg管脚和接地管脚GND之间。 [0047] PFC current sensing resistor 206 connected in parallel between Iavg and ground pins GND PFC IC's. PFC电流感测电阻器206两端的电压被PFC 210使用,并且对后者的Iavg管脚的值有影响。 PFC voltage across the sensing resistor 206 is used PFC 210, and the impact on the value of the latter Iavg pin. PFC电流感测电阻器206具有的值被选择成能够在电路中起作用的最小电阻值,使得电阻生热导致的效率损失最小,并成为较经济的实现。 206 has a value of PFC current sensing resistor is selected to minimize the resistance value in the circuit capable of functioning so as to minimize the loss of efficiency due to resistance heat and become more economical to realize. 在其Iavg管脚处,PFC IC 210输出PFC电流感测信号158,其被提供到其它组件,正如下面将进ー步讨论的。 Iavg at its pin, PFC IC 210 output of the PFC current sense signal 158, which is provided to other components, as will be discussed further in the intake ー. PFC Iavg电阻器208在一侧上被连接到PFC IC的Iavg管脚,并且在另ー侧接地(_主总线132b)。 The PFC Iavg resistor 208 is connected on one side to Iavg PFC IC pin, and on the other side of the ground ー (_ main bus 132b). Iavg管脚具有相关于PFC IC 210的放大增益变化的电压水平。 Iavg having pins associated with amplification gain variation of the PFC IC 210 voltage level.

[0048] 在+主总线132a和-主总线132s之间连接的是高侧第一总线分压电阻器(divider resist0r)124和低侧第二总线分压电阻器126,其共同形成了分压器。 [0048] In the main bus 132a and the + - 132s connected between the main bus side of the first bus is a high voltage dividing resistor (divider resist0r) 124 bus and the second low-side voltage dividing resistor 126, which together form the partial pressure device. 功率校正反馈信号152被输入到两个总线分压电阻器124、126之间的节点,该节点被连接到PFC IC210的反馈/关闭(FB SD)管脚125,功率校正反馈信号152的生成将在下面进ー步说明。 Power correction feedback signal 152 is input to a node between the two buses 124, 126 voltage dividing resistors, the node is connected to the PFC IC210 feedback / off (FB SD) pin 125, a power correction feedback signal 152 will be generated in the following step instructions into ー.

[0049] 图3示出了控制和放大器电路150的一个实施例300。 [0049] FIG. 3 shows a control circuit 150 and the amplifier 300 of the embodiment. 如图I和图3所见,控制和放大器电路150接收PFC电流感测信号158、调光器总线校正反馈信号188,以及过流反馈信号162。 I seen in FIG. 3 and FIG receiving PFC current sensing signal control circuit 150 and an amplifier 158, a dimmer correction feedback signal bus 188, and the over current signal 162. 该控制和放大器电路150输出以上所述的功率校正反馈信号152(其被输入PFCIC 210)、镇流器控制器通/断信号154,和调光器延迟控制信号156。 150 outputs the above-described control circuit for a power amplifier and a correction feedback signal 152 (which is input PFCIC 210), ballast controller on / off signal 154, the dimmer and the delay control signal 156.

[0050] 控制和放大器电路150包括运行比较器310,其被实现成放大器,并被配置成确定灯602是否已经被触发并处于持续运行状态下。 [0050] The control and operation of the amplifier circuit 150 includes comparator 310, which is implemented as an amplifier, and configured to determine whether the lamp 602 has been triggered and is in continuous operation. 运行比较器310接收来自PFC电流感测信号158的第一输入和构成运行比较器參考信号314的第二输入。 Run comparator 310 receives a second input from the first PFC current sensing signal and the reference signal input 158 ​​of comparator 314 is configured to run. 运行比较器參考信号314是设置在处于灯602的预热功率电位以上且在运行电位以下的电位的阈值。 Operation of the comparator and the reference signal 314 is set in the pre-heating power threshold potential is above the potential of the lamp 602 running below the potential. 响应于这两个输入,运行比较器310输出运行状态信号319。 In response to these two inputs, the output of comparator 310 runs operating status signal 319.

[0051] 运行状态信号319被施加到调光器延迟定时器电路350,其输出调光器延迟控制信号156。 [0051] The operating state signal 319 is applied to a dimmer delay timer circuit 350 which outputs a delay control signal dimmer 156. 运行状态信号319还被施加到触发振荡器340,其是使用放大器实现的,并且输出触发信号342。 Operating status signal 319 is also applied to a triggered oscillator 340, which is implemented using an amplifier, and outputs a trigger signal 342. 运行状态信号319和触发信号342,与过流反馈信号162 —起,全部被施加到镇流器使能逻辑电路360。 Operating status signal 319 and a trigger signal 342, the feedback signal and the overcurrent 162-- onwards, all the ballast is applied to the enable logic circuit 360. 作为响应,镇流器使能逻辑电路360输出镇流器通/断信号154,其被施加到镇流器通/断开关168,以最终控制镇流器控制器电路170。 In response, the ballast output enable logic circuit 360 the ballast on / off signal 154 which is applied to the ballast on / off switch 168 to ultimately control the ballast circuit controller 170.

[0052] 控制和放大器电路150还包括功率极限表征(PLC)电路,其最终输出功率校正反馈信号152。 [0052] The control circuit 150 further includes and an amplifier power limit Characterization (PLC) circuit, the output power of the final correction feedback signal 152. PLC电路包括PLC第一放大器320、PLC第一放大积分器322、PLC第二放大器330,和PLC第二放大器限制器332。 A first amplifier circuit comprises a PLC 320. PLC, PLC integrator 322 first amplifier, a second amplifier 330 PLC, PLC and a second limiter amplifier 332. PLC第一放大器320接收包括PFC电流感测信号158的第一输入,以及,包括调光器总线校正反馈信号188的第二输入。 PLC 320 receives a first amplifier comprises a first input PFC current sensing signal 158, and a second input bus includes a dimmer 188 of the correction feedback signal.

[0053] 然后,PLC第一放大器的输出被PLC第一放大积分器322求积分。 [0053] Then, the output of the first amplifier PLC PLC is a first integrator 322 integrates the amplified. 积分电路322具有积分时间常数,其代表灯602的预热时间。 Integrating circuit 322 has an integration time constant, representing the 602 lamp warm-up time. 由于不同的电路阻抗值和灯602的性质,预热过程与正常操作过程相比,灯602受总线电压变化的影响较小。 Due to the nature of the different circuits and the impedance value of the lamp 602, compared with the preheating process during normal operation, the lamp 602 is less affected by the bus voltage change. 然后,PLC第一放大积分器322的输出作为第一输入被传递给PLC第二放大器330,同时调光器总线校正反馈信号188被作为第二输入呈送给PLC第二放大器330。 Then, the first PLC amplified output of the integrator 322 is transmitted to the PLC as a first input of the second amplifier 330, while the dimmer bus correction feedback signal 188 as a second input is presented to the PLC a second amplifier 330. 然后PLC第二放大器330的输出由PLC第二放大器限制器322限定阈值。 PLC 330 then outputs the second amplifier 322 is defined by a threshold value of the second amplifier limiter PLC. 然后PLC第二放大器限制器332的输出被提供作为功率校正反馈信号152。 Then PLC output of the second amplifier limiter 332 is provided as a power correction feedback signal 152.

[0054] 图4示出了结合调光器时间延迟开关186的调光器接口和支持电路180的组合的一个实施例400。 [0054] FIG. 4 shows the time delay in conjunction with the dimmer in combination dimmer interface circuit 180 and a switch 186 supports according to one embodiment 400. 这种组合400包括调光器转换器电压调节器420、电压到占空比转换器410、ー对光_离器440、450,和分别包括第一和第二使能晶体管(enabling transistor)Q105、Q106的光隔离器使能变换电路460。 This combination includes a dimmer 400 converter voltage regulator 420, the voltage to duty cycle converter 410, the optical _ ー ionizer 440, 450, respectively comprising a first and second enable transistor (enabling transistor) Q105 , Q106 converting an optical isolator circuit 460 is enabled. 调光器接ロ和支持电路180还包括限制电路470、480和积分电路472、482,如下面讨论的。 Ro dimmer contact and support circuitry 180 also includes a limit circuit 470, 480, and integrating circuits 472, 482, as discussed below. 共同地,第一和第二使能晶体管Q105、Q106、限制电路470、480和积分电路472、482起到图I所见的如调光器时间延迟开关186的装置的作用。 Together, the first and second enable transistors Q105, Q106, limiting circuits 470, 480 and integrating circuits 472, 482 function as seen in Figure I dimmer switch 186 of the time delay means.

[0055] 调光器转换器电压调节器接收VCC-ISO功率信号138,并响应其输出高和低的调光器转换器VCC信号420a、420b。 [0055] The dimmer converter voltage regulator receives the power signal VCC-ISO 138, and in response to high and low output of the dimmer signal VCC converter 420a, 420b. 电压到占空比转换器410分别接收高和低(接地)调光器输入信号182a、182b,其范围一般在O至10伏。 Voltage to duty cycle converter 410 receives the high and low (ground) dimmer input signal 182a, 182b, which is typically in the range of O to 10 volts. 调光器分流电阻器184被耦接在高调光器输入信号182a和高转换器VCC信号420a之间,以在无调光器信号存在时上拉(pullup)高调光器输入。 Dimmer shunt resistor 184 is coupled between the high dimming input signal 182a and a high VCC signal converter 420a, the presence of the signal to the dimmer atonal pull (for doing pullup) high dimming input.

[0056] 电压到占空比转换器410使用在单一封装中提供的ー对Norton型运算放大器(诸如,LM2904)来实现。 [0056] voltage to duty cycle converter 410 provided in a single package using the Norton ー to achieve the operational amplifiers (such as, LM2904). 第一运算放大器在“空运行(free-run)”模式下工作,以产生从O至10伏的锯齿波形。 A first operational amplifier operating in the "empty run (free-run)" mode, to generate a sawtooth waveform from O to 10 volts. 第二运算放大器被配置成比较器。 The second operational amplifier is configured to compare the device. 第一运算放大器的输出作为第一输入被呈送给第二运算放大器。 The output of the first operational amplifier is presented to the second operational amplifier as a first input. 到第二运算放大器的第二输入是高输入调光器信号182a。 To a second input of the second operational amplifier input is high dimmer signal 182a. 第ニ运算放大器因此将第一比较器输出的锯齿波的瞬时值与高输入调光器信号182a进行比较,并且响应其输出调光器转换器输出信号414a、414b。 With high instantaneous value of the sawtooth input signal of the dimmer ni operational amplifier thus the first comparator 182a compares the output, and in response outputs a dimmer converter output signal 414a, 414b.

[0057] 两个光隔离器440、450可被实现成单一封装(例如4N35)。 [0057] The two optical isolators 440, 450 may be implemented as a single package (e.g., 4N35). 两个光隔离器440、450的内部ニ极管串联连接,第一光隔离器440的阴极被连接到第二光隔离器450的阳极。 Internal two optical isolators 440, 450 are connected in series ni diode, the cathode of the first optical isolator 440 is connected to the anode of the second optical isolator 450. 这样保证了以同一个信号来驱动两个光隔离器440、450。 This ensures that the same signals to drive two optical isolators 440, 450. 因此,如图4所见,调光器转换器输出信号414a被呈送到第一个第一光隔离器440的阳极,同时调光器转换器输出信号414b被呈送到第二光隔离器450的阴极。 Thus, as seen in FIG. 4, the dimmer output signal converter 414a it is rendered to a first anode of the first optical isolator 440, and outputs the dimmer signal converter 414b is rendered to the second optical isolator 450 cathode.

[0058] 使能晶体管Q105和Q106均被配置成通过调光器延迟控制信号156同时激活。 [0058] The enable transistor Q105 and Q106 are each configured to delay a control signal 156 are simultaneously activated by the dimmer. 当由调光器延迟控制信号156同时激活时,经由相应的基扱使能引线(base enable lead)454,444,晶体管Q105、Q106分别启动光隔离器440、450的输出。 When the delay control by the dimmer signal is activated 156 while enabling the leads (base enable lead) via a respective group Qi 454,444, transistors Q105, Q106 outputs the optical isolator 440, 450 start.

[0059] 第一光隔离器440的输出442被馈给调光器频率调整电位限制器470,其输出被供给调光器频率调整积分器472。 [0059] The output 442 is fed to the dimmer frequency adjustment voltage limiter 470, whose output is supplied to the integrator to adjust the frequency of the dimmer 472 of the first optical isolator 440. 调光器频率调整积分器472对第一光隔离器440的输出442求积分,以产生调光器频率调整信号174。 Output of the dimmer frequency integrator 472 to adjust the first optical isolator 440 442 integrating, to produce a frequency adjustment signal the dimmer 174.

[0060] 第二光隔离器440的输出452被馈给调光器总线校正电位限制器480,其输出被供应给调光器总线校正积分器482。 [0060] The output 440 of the second optical isolator 452 is fed to the dimmer bus correcting potential limiter 480, whose output is supplied to the dimmer correction integrator 482 bus. 调光器总线校正积分器482对第二光隔离器450的输出452求积分,以产生调光器总线校正信号188。 Correcting the dimmer output bus 482 for the second integrator optical isolator 450 452 integrating, to produce a dimming correction signal bus 188.

[0061] 提供了外部电路隔离屏障490,以增强在调光器接口和支持电路18的实施例400的一些组件之间的电隔离。 [0061] Providing an external circuit isolation barrier 490 to enhance the electrical isolation between some components of embodiments of the dimming interface circuit 18 and the support 400.

[0062] 图5示出了过流传感器电路160、镇流器驱动器电路140、镇流器控制器电路170以及镇流器通/断开关电路168的组合电路的ー个实施例500。 [0062] FIG. 5 shows a flow over the sensor circuit 160, the ballast drive circuit 140, ballast circuit 170, and a ballast controller on / off combination of the switch circuit 168 is a circuit embodiment 500 ー.

[0063] 镇流器控制器电路170包括镇流器控制器集成电路520 (镇流器控制器IC 520),其可被实现成FAN 7544,对于那些本领域技术人员这是已知的。 [0063] The ballast controller circuit 170 comprises a ballast controller integrated circuit 520 (ballast controller IC 520), which may be implemented as FAN 7544, to those skilled in the art is known.

[0064] 镇流器控制器IC 520的一个输出为由调光器接ロ电路产生的调光器频率调整信号174。 [0064] The output of a ballast controller IC 520 is connected ro by dimmers dimmer frequency adjustment signal generating circuit 174. 调光器频率调整信号174被连接到镇流器控制器IC 520的RT管脚。 Dimmer frequency adjustment signal 174 is connected to the ballast controller IC RT pin 520. 被总体示为511的參数管脚被连接,用于设置镇流器IC 520。 Is shown generally as 511 parameter pin is connected, it is provided for the ballast IC 520. 这些參数管脚可被连接到镇流器控制器设定扫描TC电容器512、镇流器控制器设定扫描TC电阻器514 (管脚RPH)、镇流器控制器设定运行频率电容器516,以及镇流器控制器设定运行频率电阻器518 (管脚RT)。 These parameters pins may be connected to the ballast capacitor TC scan controller 512 is set, the controller sets a scan TC ballast resistor 514 (the RPH pin), the controller set the operating frequency of the ballast capacitor 516 and the controller sets the operating frequency of the ballast resistor 518 (pin RT).

[0065] 镇流控制器IC 520的第二输入是供电电压VCC,其被选择性地供给镇流器控制器IC 520的VCC管脚,以提供电压VCC镇流控制器176。 [0065] The second input of the IC ballast controller 520 is the supply voltage VCC, which is selectively supplied ballast controller VCC pin of the IC 520, to provide a ballast controller 176 voltage VCC. 电压VCC镇流控制器176受镇流器通/断开关168控制。 Ballast voltage VCC controller 176 by the ballast on / off switch 168 controls. 镇流器通/断开关168被实现成镇流器控制器开关晶体管Q103。 Ballast on / off switch ballast controller 168 is implemented as a switching transistor Q103. 晶体管Q103的发射极引线546被连接到电压VCC镇流器驱动器164。 Q103 emitter lead of the transistor 546 is connected to ballast driver 164 voltage VCC. 电压VCC镇流器控制器176经由集电极电阻器R109被连接到Q103的集电极引线。 The ballast voltage VCC is connected to the controller 176 via the collector lead Q103 collector resistor R109. 在其基极侧,Q103经由高侧镇流器控制器Vcc开关分压电阻器545被连接到电压VCC镇流器驱动器164。 At its base side, Q103 via the high-side switch ballast controller Vcc voltage dividing resistor 545 is coupled to ballast driver 164 voltage VCC. 镇流器控制器通/断信号154经由低侧镇流器控制器Vcc开关分压电阻器548被输入到Q103基板。 Ballast controller on / off signal via the voltage dividing resistor 154 low-side switch 548 is Vcc ballast controller Q103 inputted to the substrate. 因此,由控制和放大器电路154输出的通/断镇流器控制信号154可通过切断镇流器控制器的VCC,控制镇流器控制器IC 520的操作。 Thus, the control signal 154 from the control circuit 154 and the amplifier output on / off by switching off the ballast can be of the VCC ballast controller, the controller IC 520 controls the operation of the ballast.

[0066] 过流传感器电路160包括过流感测晶体管Q110,其基极经由Vcc基极线539被连接到VCC总线134。 [0066] The sensor circuit 160 includes over-current through the sense transistor Q110, its base via line Vcc base 539 is connected to the VCC bus 134. 过流感测晶体管QllO的发射极经由感测电流限制电阻器536被连接到电压VCC镇流器驱动器164,同时感测补偿电容器538被连接在发射极和Vcc基极线539之间。 Sense transistor through the emitter electrode of QllO limiting resistor 536 via the current sensing voltage VCC is connected to the ballast driver 164, 538 is sensed while the compensation capacitor is connected between the emitter and the base line 539 Vcc. 在VCC总线134和电压VCC镇流器驱动器164之间插入有串联连接的感测ニ极管532和感测电阻器534。 Between the VCC bus 134 and the ballast voltage VCC sense driver 164 is inserted serially connected diodes 532 and ni measuring sense resistor 534. 晶体管QllO的集电极经由积分电路接地,该积分电路包括串联连接的感测积分器电阻器535和感测积分器电容器C129。 QllO collector of the transistor is grounded via the integrating circuit, the integrating circuit includes a sensing resistor connected in series to an integrator 535 and integrator sensing capacitor C129. 由VCC总线的电压134、164的影响得到的电容器信号537被感测积分器电阻器535和感测积分器电容器C129求积分。 Obtained by the influence of the capacitor signal voltage VCC 134,164 bus 537 is sensed by integrating the integrator 535 and sense resistor integrator capacitor C129. 感测积分器电容器C129两端的电压水平被输出成为过流信号162,其被供给控制和放大器电路150,其实施例300在以上參考图3进行了描述。 Sensing the voltage level across the integrator capacitor C129 is output becomes overcurrent signal 162 which is supplied to the control circuit and an amplifier 150, examples of which 3003 are described above in reference to FIG. [0067] 当总线滤波器电容器128a、128b的电压下降到阈值以下时,过流传感器电路160重置触发序列。 [0067] When the filter capacitor voltage bus 128a, 128b drops below a threshold, the sensor circuit 160 resets the overcurrent trigger sequence. 总线滤波器电容器128a、128b被连接到对灯602的驱动电路140进行供电的总线。 The filter capacitor bus 128a, 128b are connected to the drive circuit 602 of the lamp 140 supplying power to the bus. 在灯触发过程中,总线滤波器电容器128a、128b提供了启动灯602所需的额外电力。 In the light triggering process, the bus filter capacitors 128a, 128b provides additional power required to start the lamp 602. 如果灯602启动失败,则总线滤波器电容器128a、128b被在阈值以下的总线电压中的相应电压降耗尽。 If the lamp 602 fails to start, the bus capacitor filter 128a, 128b is exhausted respective voltage drop in the bus voltage in the threshold value. 总线滤波器电容器/总线的电压阈值是表示灯不能成功触发的电压水平。 The filter capacitor bus / bus voltage threshold voltage levels of the lamp is not successful firing. 过流传感器电路160的另ー个特征是,在供电和/或总线滤波电容器故障导致失去正常电压水平的情况下的电路保护。 Overcurrent sensor circuit 160 ー another feature is that the power supply and / or bus filter capacitor failure resulting loss of normal voltage level in the case of circuit protection.

[0068] 镇流器控制器IC 520输出驱动信号172,其被发送到属于镇流器驱动器电路140的镇流器驱动器IC 580。 [0068] The ballast controller IC 520 outputs a drive signal 172, which is sent to ballast driver IC 580 belonging to the driver circuit 140 of the ballast. 正如下面參考图6讨论的,镇流器驱动器电路140接收这些驱动信号172,以经由灯供电引线144a、144b来操作灯602。 As discussed below with reference to FIG. 6, the ballast drive circuit 140 for receiving the driving signal 172 to 144a, 144b to operate the lamp 602 via the lamp supply leads.

[0069] 图6说明了电路600,其包括镇流器驱动器和限压电路140,用于驱动灯602。 [0069] Figure 6 illustrates a circuit 600, which comprises a ballast and a drive voltage limiting circuit 140 for driving the lamp 602. 镇流器驱动器集成电路580被提供以来自电压VCC镇流器驱动器164的电力,并被连接到-主总线132b。 The ballast driver integrated circuit 580 is supplied with power from the ballast voltage VCC driver 164, and is connected to the - main bus 132b. 此外,如上面所讨论的,镇流器驱动器集成电路接收来自镇流器控制器电路,而且更尤其地是来自镇流器控制器芯片520的驱动器信号172。 Further, as discussed above, receives the ballast from the ballast driver integrated circuit controller circuit, and more particularly to a drive signal 172 from the controller chip 520 of the ballast. 镇流器驱动器集成电路580具有被连接到功率晶体管QlOO和QlOl栅极上的输出。 The ballast driver IC 580 having an output connected to the power transistor QlOl and QlOO gate. 晶体管QlOO被连接成在+主总线132a处供电,同时晶体管QlOl被连接成在-主总线132b处供电。 QlOO transistor is connected to the power supply of the main bus 132a +, while the transistor QlOl is connected to the - power supply of the main bus 132b. 功率晶体管QlOO和QlOl的输出被连结在一起形成谐振电路驱动信号650。 QlOO output power transistor QlOl and are joined together to form a resonant circuit driving signal 650. 同时,在总线滤波器电容器128a、128b之间的节点处形成了谐振电路返回信号(Cbus) 660 (见图I)。 Meanwhile, 128a, 128b are formed at the node between the resonance capacitor filter circuit in the return signal bus (Cbus) 660 (see Figure I).

[0070] 如图6所见,镇流器驱动器和限压电路140包括谐振电路620和触发限压电路610。 [0070] As seen in Figure 6, the ballast and the drive voltage limiting circuit 140 includes a resonant circuit 620 and the trigger voltage limit circuit 610. 在灯的触发过程中,在灯602的两端生成高电压。 Triggering of the lamp, generating a high voltage across the lamp 602. 期望的是限制灯的触发电压以保证灯的寿命。 Trigger voltage limit is desirable to ensure that the lamp life of the lamp.

[0071 ] 谐振电路620被配置成被插入到镇流器驱动器580和灯602之间的LC电路。 [0071] The resonant circuit 620 is configured to be inserted between the LC circuit 580 and the lamp ballast 602 drives. 该谐振电路620具有的谐振频率等于镇流器驱动器580的频率。 The resonant circuit 620 having a resonant frequency equal to the drive frequency of the ballast 580. 通过使镇流器驱动器580的频率与谐振电路602的谐振频率相匹配,最大功率被传递给灯602。 By matching the resonance frequency of the ballast drive circuit 602 of the resonant frequency of 580, the maximum power is transmitted to the lamp 602. 谐振电路620包括LC电路电感器622、LC电路运行电容器624,和LC电路触发电容器626。 LC resonance circuit 620 includes an inductor circuit 622, circuit 624 LC run capacitor, the LC circuit and the trigger capacitor 626. LC电路触发电容器626与灯602电并联。 LC circuit 602 and the trigger capacitor 626 is electrically in parallel with the lamp.

[0072] 触发限压电路610具有预热/运行电压僵持(standoff)高侧变阻器612a (“第一变阻器612a”)、触发电压充电高侧电容器614a (“第一电容器614a”)、触发限压变阻器618(“桥接变阻器618”)、触发电压充电低侧电容器612a (“第二电容器612a”),以及预热/运行电压僵持低侧变阻器612b(“第二变阻器612b”),跨接在LC电路之间的运行电容器624。 [0072] The trigger voltage limit circuit 610 has a preheater / operating voltage standoff (standoff) high side varistor 612a ( "first varistor 612a"), a high side capacitor voltage charging trigger 614a ( "first capacitor 614a"), the trigger voltage limiter 618 varistor ( "bridge varistor 618"), the low side capacitor voltage charging trigger 612a ( "second capacitor 612a"), and warm / low-side operating voltage standoff 612b varistor ( "second varistors 612b"), across the LC between the run capacitor circuit 624.

[0073] 正如那些本领域技术人员已知的,变阻器在阈值电压以下时具有高电阻值。 [0073] As known to those skilled in the art, a varistor having a high resistance value when below the threshold voltage. 当变阻器两端的电压超过阈值时,变阻器变得导电。 When the voltage exceeds a threshold value across the varistor, the varistor becomes conductive. 为了适应高电压,可将多个变阻器串联连接。 To accommodate high voltage, a plurality of varistor may be connected in series. 在本发明的一些实施例中,可使用金属氧化物变阻器(MOV)。 In some embodiments of the present invention, a metal oxide varistor (MOV).

[0074] 桥接变阻器906到每ー个电容器614a、614b的连接还提供了用于相应的ニ极管616a、616b的连接。 [0074] 906 to each of the varistor ー bridge capacitors 614a, 614b connected to the connection are also provided for the respective ni diodes 616a, 616b of. ニ极管616a、616b使电容器614a、614b能够被充电到dc电平。 Ni diodes 616a, 616b of the capacitor 614a, 614b can be charged to the dc level. 变阻器612a、612b提供了足以阻止触发限压器620干扰正常的灯运行驱动电位的电压阈值。 Rheostat 612a, 612b provides a voltage sufficient to prevent the trigger threshold voltage limiter 620 interferes with the normal operation of a lamp driving potential. 当在电容器614a、614b两端累积的电平达到桥接变阻器618的电压极限吋,该桥接变阻器618导通,从而将灯的触发电压限制成等于第一和第二变阻器612a、612b以及桥接变阻器618的累积电压额定值的电压。 When the capacitors 614a, 614b at both ends of the cumulative bridging varistor voltage level reaches the limit of 618 inches, the bridge varistor 618 is turned on so that the lamp trigger voltage limit to be equal to the first and second varistor 612a, 612b and a bridge varistor 618 the cumulative voltage rating voltage. 电压波形的峰值克服了桥接变阻器618,以提供流过跨接LC电路的运行电容器624的电流。 Peak voltage waveform overcome bridging varistor 618, 624 to provide a current flowing through the operating capacitor connected across the LC circuit. 该电流阻止在谐振电压建立中的继续升高,而不提高驱动电流。 The current resonance voltage prevent establishment continues to rise, without increasing the driving current. 因此,其间接限制了对于应用的在电流和尺寸方面的驱动器要求,并允许使用更经济的驱动器开关装置,对于更快速的开关以及更高的效率,其典型地具有更小的nC。 Thus, indirect application limits for the drive current and size requirements, allows the use of more economical and drive switching means for switching faster and more efficient, which typically have a smaller nC.

[0075] 当发生灯的触发时,由于阻挡电容128a、128b耗尽而导致的延迟,在生成过流信号之前达到灯触发电压。 [0075] When the ignition of the lamp occurs, since the blocking capacitors 128a, 128b and the delay caused by the depletion, through the stream signal generation before the lamp reaches the trigger voltage. 另ー方面,利用通过L/C谐振频率驱动的频率扫描产生的触发,由L/C 'Q'和扫描的速率产生了峰值触发电压处的有限停留时间。ー another aspect, the use of the trigger frequency sweep produced by the L / C resonance frequency of the drive, resulting in a limited residence time at the peak of a trigger voltage and the rate of L / C 'Q' scan. 在主总线上的阻挡电容器与全扫描所需要的相比具有明显少的电荷,并且,因此,过流导致了触发的终止。 Blocking capacitor on the primary bus as compared with full scan required significantly less charge, and, therefore, lead to overcurrent trigger termination. 这同样阻止了已知的灯602的不成功启动。 This also prevents the known lamp 602 starts unsuccessful. 例如,在极度失控的状态下,高亮度放电(HID)灯具有持续初始启动电弧的能力。 For example, in extremely out of control, high intensity discharge (HID) lamps have the ability to continue the initial startup of the arc. 这种阻挡耗尽的控制方法阻止了电弧持续。 This method of control barrier prevents the depletion of the arc sustained.

[0076] 在灯602触发之后,谐振LC电路触发电容626通过灯602相对低的有效阻抗被分流。 [0076] After the lamp 602 is triggered, the trigger capacitor resonant LC circuit 626 is shunted by the lamp 602 is relatively low effective impedance. 結果,使用作为示例的一个实施例,谐振电路610的180KHz谐振频率变为75KHz,并变成主要为电感性的,这是因为驱动频率处于曲线向上斜坡上。 As a result, as one embodiment of an example, 180 KHz resonant frequency circuit 610 becomes 75KHz embodiment, and becomes primarily inductive, since the driving frequency is in the upward slope on the curve. 随着灯602中的电弧转变为等离子体,灯所需的最大电流从4A降到2. 6A,其处于典型的额定运行值。 With the arc lamp 602 is converted to plasma, the maximum lamp current required from 4A down 2. 6A, which is a typical nominal operational value. 在给定驱动阻抗的情况下,典型的灯602将在几分钟之内转变。 In the case of given driving impedance, typically 602 to convert light within a few minutes. 据此,以较低的速率进行对功率和/或亮度的调节,这几乎或根本不可察觉。 Accordingly, at a lower rate to adjust power and / or brightness, which have little or undetectable. 而且,为避免稳定性出现问题,调节速率比PFC功率増益响应特征更低。 Further, in order to avoid stability problems, the rate of adjustment gain response than the lower enlargement of the PFC power characteristics. 例如,PFC动态功率増益特征被设定在5Hz的速率,以支持典型的触发和灯的运行。 For example, enlargement of the dynamic power gain characteristics are set at a rate of 5Hz PFC to support triggering and typical operation of the lamp.

[0077] 从前述内容中可以看出,限压器610限制了在灯602开启时由镇流器电路140施加的触发电压。 [0077] As can be seen from the foregoing, the voltage limiter 610 limits the voltage applied to the trigger 602 when the lamp 140 is turned on by the ballast circuit. 限压器610使用变阻器来接通电路组件(例如,电容器),其根据电压水平改变谐振电路參数。 The voltage limiter circuit 610 is turned on using the rheostat assembly (e.g., a capacitor), which changes according to the voltage level of the resonant circuit parameters. 当达到一定的电压时,变阻器导电,并接通连接到谐振电路620的电路。 Upon reaching a certain voltage, the varistor electrically conductive, and the electrical circuit connected to the resonant circuit 620. 限压器610改变了谐振电路620的谐振频率,其导致到灯602的电压被箝位在最大值。 The voltage limiter 610 changes the resonant frequency of circuit 620, which causes the voltage to the lamp 602 is clamped to a maximum value.

[0078] 如图6所见,镇流器驱动器电路140 (包括谐振电路610)和限压电路6100不具有被配置成用于检测在电路140中的电流状态的电阻器,与现有技术中的镇流器电路不同。 [0078] as seen in FIG. 6, the ballast drive circuit 140 (including a resonant circuit 610), and does not have a voltage limit circuit 6100 is configured to detect a current state in the circuit of a resistor 140, and the prior art different ballast circuit. 完全不包括这样的电阻器有助于减轻在镇流器电路100中的功率消耗和热生成。 Completely includes a resistor 100 generates help reduce the power consumption and heat ballast circuit.

[0079] 虽然已经參考ー个或多个特定的实施例描述了本发明,但是该说明g在进行总体上的说明,并不应被解释成将本发明限制在所示出的实施例中。 [0079] Although specific reference ー or more embodiments of the present invention is described, the description is a general description performing g, and should not be construed to limit the invention to the illustrated embodiments. 应该体会到的是,对于那些本领域技术人员来说可发生不同的变形,虽然在此未特别地被示出,但仍在本发明的范围内。 We should appreciate that, for those skilled in the art for different deformation may occur, although this is not specifically illustrated, but is still within the scope of the present invention.

[0080] 參考编号列表: [0080] reference list:

[0081] 100—镇流器电路; [0081] The ballast circuit 100;

[0082] 110—EMI和滤波器桥式电路; [0082] 110-EMI filter and bridge circuit;

[0083] 112a—输入,NI; [0083] 112a- input, NI;

[0084] 112b—输入,N2; [0084] 112b- input, N2;

[0085] 114 ー输入,安全接地; [0085] ー input 114, safety ground;

[0086] 116—PFC输入电容器; [0086] 116-PFC input capacitor;

[0087] 118a—经整流正弦波(+ ); [0087] 118a- a rectified sine wave (+);

[0088] 118b—经整流正弦波(_); [0088] 118b- a rectified sine wave (_);

[0089] 120—功率因子控制器; [0089] 120- power factor controller;

[0090] 122—支路线;[0091] 124-总线划分器,高侧; [0090] Route 122- branched; [0091] 124- divider bus, the high side;

[0092] 125—PFC IC反馈/关闭管脚; [0092] 125-PFC IC feedback / off pin;

[0093] 126-总线划分器,低侧; [0093] 126- divider bus, a low-side;

[0094] 128a—总线滤波器电容器高; [0094] 128a- high bus filter capacitor;

[0095] 128b—总线滤波器电容器低; [0095] 128b- bus filter capacitor is low;

[0096] 130—电压调节器电路; [0096] 130- voltage regulator circuit;

[0097] 132a—+ 主总线; [0097] 132a- + main bus;

[0098] 132b主总线; [0098] 132b of the main bus;

[0099] 134—Vcc 总线; [0099] 134-Vcc bus;

[0100] 138—Vcc-Iso ; [0100] 138-Vcc-Iso;

[0101 ] 140—镇流器驱动器电路; [0101] 140- ballast driver circuit;

[0102] 144a—灯供电引线I ; [0102] 144a- lamp supply lead I;

[0103] 144b—灯供电引线2 ; [0103] 144b- lamp supply lead 2;

[0104] 150—控制和放大器电路; [0104] 150 and the amplifier control circuit;

[0105] 152—功率校正反馈信号; [0105] 152- feedback power correction signal;

[0106] 154-镇流器控制器通/断信号; [0106] 154- ballast controller on / off signal;

[0107] 156—调光器延迟控制信号; [0107] 156- dimmer delay control signal;

[0108] 158—PFC电流感测信号(来自PFC IC的Iavg管脚); [0108] 158-PFC current sensing signal (Iavg from the PFC IC pins);

[0109] 160—过流传感器电路; [0109] 160- overcurrent sensor circuit;

[0110] 162 —过流反馈/[目号; [0110] 162-- overcurrent feedback / [log number;

[0111] 164—电压VCC镇流器驱动器; [0111] 164- ballast drive voltage VCC;

[0112] 168-镇流器通断开关; [0112] 168- ballast on-off switch;

[0113] 170—镇流器控制器电路; [0113] The ballast controller circuit 170;

[0114] 172—驱动信号; [0114] 172- driving signal;

[0115] 174—镇流器频率调整信号; [0115] 174- ballast frequency adjustment signal;

[0116] 176—电压VCC-镇流器控制器; [0116] VCC- 176- voltage ballast controller;

[0117] 180—调光器电路; [0117] dimmer circuit 180;

[0118] 182a —调光输入( + ); [0118] 182a - dimming input (+);

[0119] 182b —调光输入(_); [0119] 182b - dimming input (_);

[0120] 184—调光器分流电阻器; [0120] 184- dimmer shunt resistor;

[0121] 186—调光器时间延迟开关; [0121] 186- dimmer time delay switch;

[0122] 188-调光器总线校正反馈信号; [0122] The dimmer 188 bus correction feedback signal;

[0123] 200—功率因子控制器电路; [0123] The power factor controller circuit 200-;

[0124] 206PFC电流感测电阻器; [0124] 206PFC current sensing resistor;

[0125] 208—PFC Iavg 电阻器; [0125] 208-PFC Iavg resistor;

[0126] 210—NCP 1650 (安森美半导体公司); [0126] 210-NCP 1650 (ON Semiconductor);

[0127] 300—控制器和放大器电路; [0127] The controller 300 and an amplifier circuit;

[0128] 310—运行比较器; [0128] 310- comparator operation;

[0129] 314-运行比较器參考;[0130] 319 —运行状态/[目号; [0129] Reference comparator 314- operation; [0130] 319-- operating state / [log number;

[0131] 320—PLC 放大器I ; [0131] 320-PLC amplifier I;

[0132] 322—PLC放大I积分器; [0132] 322-PLC I enlarged integrator;

[0133] 330—PLC 放大器2 ; [0133] 330-PLC amplifier 2;

[0134] 332—PLC放大2限制器; [0134] 332-PLC amplifying limiter 2;

[0135] 340—触发振荡器; [0135] 340- triggered oscillator;

[0136] 342—触发信号; [0136] 342- trigger signal;

[0137] 350—调光延迟定时器; [0137] 350- dimming delay timer;

[0138] 360-镇流器使能逻辑; [0138] 360- ballast enable logic;

[0139] 400—调光器接口和支持电路; [0139] 400- dimmer interface and support circuits;

[0140] 410—电压到占空比转换器; [0140] 410 to the duty cycle of the voltage converter;

[0141] 414a, b—调光转换器输出; [0141] 414a, b- dimmer converter output;

[0142] 420—调光转换器Vcc调节器; [0142] 420- dimmer converter Vcc regulator;

[0143] 420a—调光转换器Vcc+ ; [0143] 420a- dimmer converter Vcc +;

[0144] 420b—调光转换器Vcc-; [0144] 420b- dimmer Vcc- converter;

[0145] 430—T100 变压器; [0145] 430-T100 transformer;

[0146] 440—光隔离器U104 ; [0146] 440 optical isolator U104;

[0147] 442—光隔离器U104输出; [0147] 442- optical isolator U104 output;

[0148] 444—光隔离器U104使能; [0148] 444- enable the optical isolator U104;

[0149] 450—光隔离器U105 ; [0149] 450- optical isolator U105;

[0150] 452—光隔离器U105输出; [0150] 452- optical isolator U105 output;

[0151 ] 454—光隔离器U105使能; [0151] 454- enable the optical isolator U105;

[0152] 460—光隔离使能变换器; [0152] 460- enable optical isolator transformer;

[0153] Q105—第一晶体管使能变换器; [0153] Q105- enable the first inverter transistor;

[0154] Q106—第二晶体管使能变换器; [0154] Q106- second enable transistor inverter;

[0155] 470—调光器频率调整电位限制器; [0155] 470- dimmer frequency adjustment voltage limiter;

[0156] 472-调光器频率调整积分器; [0156] 472- adjust the dimmer frequency integrator;

[0157] 480-调光器总线校正电位限制器; [0157] 480- dimmer bus voltage limiter correction;

[0158] 482-调光器总线校正积分器; [0158] 482- dimmer bus correction integrator;

[0159] 490—隔离屏障; [0159] 490- isolation barrier;

[0160] 500-镇流器控制器和驱动器电路; [0160] The ballast controller 500 and the driver circuit;

[0161] 511-镇流器控制器參数管脚; [0161] 511- pin ballast controller parameters;

[0162] 512-镇流器控制器设定扫描TC电容器; [0162] 512- ballast capacitor TC scan controller sets;

[0163] 514-镇流器控制器设定扫描TC电阻器; [0163] 514- ballast controller TC scan setting resistor;

[0164] 516-镇流器控制器设定运行频率电容器; [0164] 516- ballast controller set the operating frequency of the capacitor;

[0165] 518-镇流器控制器设定运行频率电阻器A ; [0165] 518- controller sets the operating frequency of the ballast resistor A;

[0166] 520—镇流器控制IC ; [0166] 520- ballast control the IC;

[0167] Q110—0C感测晶体管; [0167] Q110-0C sense transistor;

[0168] 532—OC 感测ニ极管Dl 16 ;[0169] C129—0C感测积分器电容器; [0168] 532-OC Ni sensing diode Dl 16; [0169] C129-0C sensing capacitor integrator;

[0170] 534—OC 感测电阻器Rl39 ; [0170] 534-OC sense resistor Rl39;

[0171] 535—OC感测积分器电阻器; [0171] 535-OC integrator sense resistor;

[0172] 536—0C感测限流电阻器; [0172] 536-0C sense limiting resistor;

[0173] 537—0C 感测信号; [0173] 537-0C sensed signal;

[0174] 538—OC感测补偿电容器; [0174] 538-OC sensing compensation capacitor;

[0175] 539—到感测晶体管中的Vcc线路; [0175] 539 to the sensing transistor Vcc line;

[0176] Q103-镇流器控制器Ncc开关晶体管; [0176] Q103- ballast controller Ncc switching transistor;

[0177] 545-高侧镇流器控制器Vcc开关分压电阻器; [0177] 545- high-side switch ballast controller Vcc voltage dividing resistors;

[0178] 546-镇流器控制器晶体管开关的发射极引线; Transmitting [0178] 546- ballast controller lead electrode of the transistor switch;

[0179] R109—镇流器控制器晶体管开关的集电极电阻器; [0179] R109- ballast controller collector resistor of the transistor switch;

[0180] 548-低侧镇流器控制器Vcc开关分压电阻器; [0180] 548- low-side switching ballast controller Vcc voltage dividing resistors;

[0181] 580—镇流器驱动器IC IR2113 ; [0181] 580- ballast driver IC IR2113;

[0182] 600—镇流器驱动器电路; [0182] The ballast driver circuit 600;

[0183] 602—灯; [0183] 602- lamp;

[0184] 610—触发限压器; [0184] 610- trigger voltage limiter;

[0185] 612a—预热/运行电压僵持高侧; [0185] 612a- preheating / high-side operating voltage standoff;

[0186] 612b—预热/运行电压僵持低侧; [0186] 612b- preheating / low-side operating voltage standoff;

[0187] 614a—触发电压充电电容器高侧; [0187] 614a- trigger the high voltage charging capacitor side;

[0188] 614b—触发电压充电电容器低侧; [0188] 614b- trigger voltage charging capacitor lower side;

[0189] 616a—触发整流器ニ极管高侧; [0189] 616a- trigger the high-side diode rectifier Ni;

[0190] 616b-触发整流器ニ极管低侧; [0190] 616b- trigger a low-side diode rectifier Ni;

[0191] 618—触发限压器MOV ; [0191] 618- trigger MOV voltage limiter;

[0192] 620—谐振LC 电路; [0192] 620- resonant LC circuit;

[0193] 622—谐振LC电路电感器; [0193] 622- LC resonant circuit inductor;

[0194] 624—谐振LC电路运行电容器; [0194] 624- run capacitor resonant LC circuit;

[0195] 626—谐振LC电路触发电容器; [0195] 626- trigger capacitor resonant LC circuit;

[0196] 650—谐振电路驱动器信号; [0196] 650 a resonant circuit driver signal;

[0197] 660—谐振电路返回信号(Cbus )。 [0197] 660- resonance circuit return signal (Cbus).

Claims (28)

  1. 1. 一种用于限制灯的触发电压的电子镇流器电路,包括: 镇流器驱动器电路(140 ),该镇流器驱动器电路(140 )包括: 谐振电路(620),其具有第一谐振频率,并被配置成驱动灯(602); 以及限压电路(610 ),其被连接到所述谐振电路(620 )。 An electronic ballast circuit trigger voltage limit for the lamp, comprising: ballast driver circuit (140), the ballast driver circuit (140) comprising: a resonant circuit (620) having a first the resonance frequency, and is configured to drive the lamp (602); and a voltage limiting circuit (610), which is connected to said resonant circuit (620).
  2. 2.所述用于限制灯的触发电压的电子镇流器电路,其中当灯的电压超过阈值电压时,所述第一谐振频率变为第二谐振频率,从而所述灯的电压被箝位到所述阈值电压。 2. The electronic ballast circuit for a lamp trigger voltage limit, wherein when the lamp voltage exceeds the threshold voltage, the first resonant frequency to a second resonant frequency so that the voltage of the lamp is clamped to the threshold voltage.
  3. 3.如权利要求I所述的电子镇流器电路,其中: 所述谐振电路(620)包括与运行电容器(624)和触发电容器(626)串联连接的第一电感器(622),所述灯(602)被跨接在所述触发电容器(626)的两端;并且所述限压电路(610)被跨接到所述运行电容器(624)两端。 3. The electronic ballast circuit according to claim I, wherein: said resonant circuit (620) comprises a first inductor (622) connected in series with a run capacitor (624) and a trigger capacitor (626), the lamp (602) is connected across both ends of the trigger capacitor (626); and the voltage limiting circuit (610) is connected across the (624) running across said capacitor.
  4. 4.如权利要求3所述的电子镇流器电路,其中,所述限压电路(610)包括: 在所述运行电容器(624)的高侧和公共电压(Cbus)之间被串联连接的第一变阻器(612a)、触发电压充电高侧电容器(614a)和第一ニ极管(616a); 在所述运行电容器(624)的低侧和所述公共电压(Cbus)之间被串联连接的第二变阻器(612b)、触发电压充电低侧电容器(614b)和第二ニ极管(616b); 其中,所述第一ニ极管(616a)被布置成在第一方向上导通,并且,所述第二ニ极管(616b)被布置成在与所述第一方向相反的方向上导通。 4. The electronic ballast circuit according to claim 3, wherein said voltage limiting circuit (610) comprising: connected in series between the run capacitor (624) and a common high-voltage side (Cbus) of a first varistor (612a), a high side capacitor charging trigger voltage (614a) and a first diode Ni (616a); are connected in series between the run capacitor (624) and the common low voltage side (Cbus) a second varistor (612b), the charge trigger voltage low side capacitor (614b) and a second Ni diode (616b); wherein said first Ni diode (616a) is arranged to be turned in a first direction, and, the second Ni diode (616b) being arranged to be turned in the opposite direction to the first direction.
  5. 5.如权利要求4所述的电子镇流器电路,其中,所述限压电路(610)进ー步包括: 第三变阻器(618),其将位于所述触发电压充电高侧电容器(614a)与所述第一ニ极管(616a)之间的第一点和位于所述触发电压充电低侧电容器(614b)和所述第二ニ极管(616b)之间的第二点桥接。 5. The electronic ballast circuit according to claim 4, wherein said voltage limiting circuit (610) further into ー comprising: a third varistor (618), which is located in the high side capacitor voltage charging trigger (614a ) between the first point and the first Ni diode (616a) and a second trigger point located between the bridging charge the low voltage side capacitor (614b) and the second Ni diode (616b).
  6. 6.如权利要求4所述的电子镇流器电路,其中: 所述公共电压(Cbus)是从跨接在一对总线(132a、132b)之间的第一和第二电容器(128a、128b)形成的分压器得到的。 6. The electronic ballast circuit according to claim 4, wherein: the common voltage (Cbus) from the first and second capacitors connected across between a pair of buses (132a, 132b) of (128a, 128b ) obtained by forming a voltage divider.
  7. 7.如权利要求4所述的电子镇流器电路,其中: 所述镇流器驱动器电路(140)不具有配置成用于检测其中的电流状态的电阻器,以减轻功率消耗和热生成。 7. The electronic ballast circuit according to claim 4, wherein: the ballast driver circuit (140) does not have a resistor configured to detect a state in which a current, to reduce power consumption and heat generation.
  8. 8. ー种电子镇流器电路,包括: 镇流器控制器电路,被配置成输出至少ー个驱动信号; 功率因子校正电路,输出反映电压的电流感测信号; 控制和放大器电路,被配置成接收所述电流感测信号,向所述功率因子校正电路提供功率校正反馈信号,以及,提供ー个或多个输出信号以控制所述镇流器控制器电路; 镇流器驱动器电路,被配置成接收来自所述镇流器控制器电路的所述至少一个驱动信号,所述镇流器驱动器电路包括: 可连接到灯的谐振电路;以及被配置成调节所述谐振电路的行为的限压电路; 以及过流传感器电路,被配置成向所述控制和放大器电路输出信号,从而经由所述控制和放大器电路间接地控制所述镇流器控制器电路。 8. ー electronic ballast circuit, comprising: a ballast controller circuit configured to output drive signals at least ー; power factor correction circuit, the current sensing signal reflected voltage output; and an amplifier control circuit configured to receive the current sense signal provided to the power factor correction circuit for a power correction feedback signal, and providing ー or more output signals to control said ballast control circuit; driver ballast circuitry threshold, and configured to adjust the behavior of the resonant circuit; may be connected to the lamp resonant circuit: a ballast configured to receive from the controller at least one circuit drive signal, the driver circuit comprises a ballast voltage circuit; and overcurrent sensor circuit is configured to control the amplifier circuit and an output signal to control said ballast controller indirectly via the control circuit and an amplifier circuit.
  9. 9. 一种用于限制灯触发电压的电子镇流器电路,包括: 供电电路(110); 功率因子控制器电路(120),其被连接到所述电源(110),所述功率因子控制器电路(120)包括PFC集成芯片(210)和分压器。 An electronic ballast circuit for limiting a lamp trigger voltage, comprising: a power supply circuit (110); a power factor controller circuit (120), which is connected to said power source (110), said power factor control circuitry (120) comprises a PFC integrated chip (210) and a voltage divider.
  10. 10.如权利要求9所述的用于限制灯触发电压的电子镇流器电路,其中,所述分压器包括第一总线分压电阻器(124)和第二总线分压电阻器(126)。 10. The electronic ballast circuit as claimed in claim trigger voltage limit for said lamp 9, wherein said voltage divider comprises a first voltage dividing resistor bus (124) and the second bus voltage dividing resistors (126 ).
  11. 11.如权利要求10所述的用于限制灯触发电压的电子镇流器电路,进一歩包括被设置在所述第一总线分压电阻器(124)和所述第二总线分压电阻器(126)之间的节点。 Trigger voltage limit for the lamp electronic ballast circuit as claimed in claim 10, comprising a ho into a first bus provided in the dividing resistor (124) and said second bus voltage dividing resistor between nodes (126).
  12. 12.如权利要求11所述的用于限制灯触发电压的电子镇流器电路,其中,所述第一总线分压电阻器(124)被设置在第一主总线(+主总线132a)和所述节点之间。 12. The electronic ballast circuit as claimed in claim trigger voltage limit for the lamp 11, wherein the first bus voltage dividing resistor (124) is disposed on a first main bus (main bus 132a +) and the node between.
  13. 13.如权利要求11所述的用于限制灯触发电压的电子镇流器电路,其中,所述第二总线分压电阻器(124)被设置在第二主总线(_主总线132b)和所述节点之间。 13. The electronic ballast circuit as claimed in claim trigger voltage limit for the lamp 11, wherein the second bus voltage dividing resistor (124) is provided on the second main bus (main bus _ 132b) and the node between.
  14. 14. 一种用于限制灯的触发电压的电子镇流器电路,包括: 运行比较器(310); 触发振荡器(340 ),其被连接到所述运行比较器(310 );以及镇流器使能逻辑电路(360),其被连接到所述运行比较器(310)以及所述触发振荡器(340)。 14. An electronic ballast circuit for a trigger voltage limit for the lamp, comprising: operating the comparator (310); triggered oscillator (340), which is connected to the operation of the comparator (310); and ballasting enable logic circuit (360), which is connected to the operation of the comparator (310) and said trigger oscillator (340).
  15. 15.如权利要求14所述的用于限制灯的触发电压的电子镇流器电路,进一歩包括调光器延迟定时电路(350 ),其被连接到所述运行比较器(310 )。 15. The electronic ballast circuit as claimed in claim trigger voltage limit for the lamp 14, into a ho-delay timer includes a dimmer circuit (350), which is connected to the operation of the comparator (310).
  16. 16.如权利要求14所述的用于限制灯的触发电压的电子镇流器电路,进一歩包括: 功率极限表征(PLC)电路(317),所述PLC电路(317)包括:PLC第一放大器320、PLC第一放大器积分器322、PLC第二放大器330,以及PLC第二放大器限制器332。 16. The electronic ballast circuit as claimed in claim trigger voltage limit for the lamp 14, into a ho comprising: Characterization power limit (PLC) circuit (317), the PLC circuit (317) comprising: a first PLC amplifier 320., a first amplifier integrator PLC 322, PLC a second amplifier 330, a second amplifier and limiter 332 PLC.
  17. 17. 一种用于限制灯的触发电压的电子镇流器电路,包括: 调光器转换器电压调节器(420); 电压到占空比转换器(410),其被连接到所述调光器转换器电压调节器(420); 第一光隔离器(440),其被连接到所述电压到占空比转换器(410);以及第二光隔离器(450),其被连接到所述电压到占空比转换器(410)。 17. An electronic ballast circuit for a trigger voltage limit for the lamp, comprising: a dimmer converter voltage regulator (420); a voltage to duty cycle converter (410), which is connected to the adjustment an optical converter voltage regulator (420); a first optical isolator (440), which is connected to the voltage-to-duty cycle converter (410); and a second optical isolator (450), which is connected to the duty cycle of the voltage converter (410).
  18. 18.如权利要求17所述的用于限制灯的触发电压的电子镇流器电路,进一歩包括设置在所述调光器转换器电压调节器(420)和所述电压到占空比转换器(410)之间的调光器分流电阻器(184)。 18. The electronic ballast circuit as claimed in claim trigger voltage limit for the lamp 17, into a ho provided comprising the dimmer converter voltage regulator (420) and the voltage to duty cycle converter between the dimmer (410) shunt resistor (184).
  19. 19.如权利要求17所述的用于限制灯的触发电压的电子镇流器电路,其中,所述第一光隔离(440)和所述第二光隔离器(450)并联连接。 19. The electronic ballast as claimed in claim trigger circuit for limiting the voltage of the lamp 17, wherein said first optical isolator (440) and said second optical isolator (450) connected in parallel.
  20. 20.如权利要求19所述的用于限制灯的触发电压的电子镇流器电路,其中,所述第一光隔离器(440)的阴极被连接到所述第二光隔离器(450)的阳极。 20. The electronic ballast circuit as claimed in claim trigger voltage limit for a lamp of claim 19, wherein said first optical isolator (440) is connected to the cathode of said second optical isolator (450) anodes.
  21. 21.如权利要求17所述的用于限制灯的触发电压的电子镇流器电路,进一歩包括: 光隔离器使能变换器电路(460),其包括第一使能晶体管(Q105)和第二使能晶体管(Q106),其中,所述第一使能晶体管(Q105)被连接到所述第一光隔离器(440),并且,所述第二使能晶体管(Q106)被连接到所述第二光隔离器(450)。 21. The electronic ballast circuit for a lamp trigger voltage limit of the claimed in claim 17, into a ho comprising: an optical isolator enable the converter circuit (460) including a first enable transistor (of Q105) and a second enable transistor (Q106), wherein the first enable transistor (of Q105) is coupled to said first optical isolator (440), and wherein the second enable transistor (Q106) is connected to the said second optical isolator (450).
  22. 22.如权利要求21所述的用于限制灯的触发电压的电子镇流器电路,进一歩包括: 调光器频率调整电位限制器(470),其被设置在所述第一光隔离器(440)和调光器频率调整积分器(472)之间;以及调光器总线校正电位限制器(480),其被设置在所述第二光隔离器(440)和调光器总线校正积分器(482)之间。 22. The electronic ballast circuit as claimed in claim trigger voltage limit for the lamp 21, into a ho comprising: a dimmer frequency adjustment voltage limiter (470), which is disposed on the first optical isolator (440) and adjust the dimmer frequency integrator (472) between; dimmer and correcting potential bus limiter (480), which is disposed in said second optical isolator (440) and the dimming correction bus The integrator (482) between.
  23. 23. 一种用于限制灯的触发电压的电子镇流器电路,包括: 过流传感器电路(160); 镇流器控制器集成电路(IC) (520),其被连接到所述过流传感器电路(160);以及镇流器驱动器电路(140),其被连接到所述镇流器控制器IC (520)。 23. An electronic ballast circuit trigger voltage limit for the lamp, comprising: an overcurrent sensor circuit (160); a ballast controller integrated circuit (IC) (520), which is connected to said overcurrent sensor circuit (160); and a driver circuit of the ballast (140), which is connected to the ballast controller IC (520).
  24. 24.如权利要求23所述的用于限制灯的触发电压的电子镇流器电路,其中,所述过流传感器电路(160)包括被连接到集成电路的过流感测晶体管(Q110)。 24. The electronic ballast circuit as claimed in claim trigger voltage limit for the lamp 23, wherein said overcurrent sensor circuit (160) comprises a through current sensing transistor (Q110) is connected to the integrated circuit.
  25. 25.如权利要求24所述的用于限制灯的触发电压的电子镇流器电路,其中,所述集成电路包括与感测积分器电容器(C129)串联连接的感测积分器电阻器(535)。 25. The electronic ballast circuit for a lamp trigger voltage limit of the claim 24, wherein the integrated circuit comprises an integrator in series with the sensing capacitor (C129) connected to the sense resistor integrator (535 ).
  26. 26.如权利要求23所述的用于限制灯的触发电压的电子镇流器电路,进一歩包括:与感测电阻器(534)串联连接的感测ニ极管(532)。 26. The electronic ballast circuit as claimed in claim trigger voltage limit for the lamp 23, into a ho comprising: sensing connected to the sense resistor (534) connected in series Ni measured diode (532).
  27. 27.如权利要求23所述的用于限制灯的触发电压的电子镇流器电路,其中,所述镇流器控制器IC (520)进ー步包括: 多个參数管脚(511),所述多个參数管脚被连接到镇流器控制器设定扫描TC电容器(512)、镇流器控制器设定扫描TC电阻器514、镇流器控制器设定运行频率电容器(516),以及镇流器控制器设定运行频率电阻器(518 )。 27. The electronic ballast circuit as claimed in claim trigger voltage limit for the lamp 23, wherein the ballast controller IC (520) further into ー comprising: a plurality of parameters pins (511) the pin is connected to a plurality of parameters to set the scanning controller TC ballast capacitor (512), the controller sets a scan TC ballast resistor 514, the controller set the operating frequency of the ballast capacitor ( 516), and a controller sets the operation frequency ballast resistor (518).
  28. 28.如权利要求23所述的用于限制灯的触发电压的电子镇流器电路,其中,所述镇流器控制器IC (520)进ー步包括: 镇流器控制器开关晶体管(Q103),其包括发射极引线(546),其中所述镇流器控制器开关晶体管(Q103)被连接到集电极电阻器(R109)、镇流器控制器Vcc开关分压电阻器(545),以及镇流器控制器Vcc开关分压电阻器(548)。 28. The electronic ballast circuit as claimed in claim trigger voltage limit for the lamp 23, wherein the ballast controller IC (520) further into ー comprising: a ballast controller switching transistor (Q103 ), which includes an emitter lead (546), wherein the ballast controller switching transistor (Q103) is connected to a collector resistor (R109), the ballast switch controller Vcc voltage dividing resistors (545), and a switching ballast controller Vcc voltage dividing resistors (548).
CN 201080060369 2009-11-02 2010-11-02 Lamp electronic ballast circuit CN102696279B (en)

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US61/257,194 2009-11-02
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US9338857B2 (en) 2016-05-10 grant
US20140252978A1 (en) 2014-09-11 application

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